653274427 has 4 divisors (see below), whose sum is σ = 703526320. Its totient is φ = 603022536.

The previous prime is 653274421. The next prime is 653274481. The reversal of 653274427 is 724472356.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-653274427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 653274427.

It is not an unprimeable number, because it can be changed into a prime (653274421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25125927 + ... + 25125952.

It is an arithmetic number, because the mean of its divisors is an integer number (175881580).

Almost surely, 2^653274427 is an apocalyptic number.

653274427 is a deficient number, since it is larger than the sum of its proper divisors (50251893).

653274427 is a wasteful number, since it uses less digits than its factorization.

653274427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50251892.

The product of its digits is 282240, while the sum is 40.

The square root of 653274427 is about 25559.2336935206. The cubic root of 653274427 is about 867.6912525586.

The spelling of 653274427 in words is "six hundred fifty-three million, two hundred seventy-four thousand, four hundred twenty-seven".